Harrow.



G. H. FERGUSON.

HARROW.

APPLICATION min 020.3. 191:.

1,274,866. Patented Aug. 6, 1918.

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HARROW.

APPLICATION FILED DEC. 3. 1911.

1,274,866. Patented Aug. 6, 1918.

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ranged as shown in Fig. 2.

ranged as an A harrow'.

GILBER H. FERGUSON, or SAMANTHA, ALABAMA- nAnRow.

Specification of Letters Patent. Patented Aug, 6, 1918.

Application filed December 3, 1917. Serial No. 205,060.

To all whom itmay concern: 1 l

Be it known that I, GILBERT H. FERGUSON, a citizen of the United States, residing at Samantha, in the .county ofTuscaloosa and State of Alabama, have invented certain new and useful Improvements in Harrows, of which the, following is a specification.

. v This invention relates to improvements in harrows, and has for one of its objects to provide a simply constructed adjustable harrowwherein provision is made for adjusting the tooth supporting. members to, control the distance between the lines oftravel of the same and to produce aside or center draft harrow, as required. 4 V V f Withthese and other objects in View, the invention consists in certain novel features of construction, as hereinafter shown and describedand then specifically pointed; out

in i the claims; and, in v the drawings illus- -trative of the preferred embodiment of the invention- Figurel is a plan view of theimproved harrow with the tooth supporting beams arranged obliquely to the longitudinal axis of the draft tongue. l q

Fig. 2 's a view similar to 1 with the tooth supportingbeams arranged substantially at rightangles to the draft tongue. Fig. 3 is a side elevation of the device ar- Fig. 4 is a view similar to Fig. lflillustrating the device arranged with a lesser number of teeth. x Y Fig. 5 is a plan view of the device ar- Fig. 6 is an enlarged detached view of one of v the tooth I clamping devices.

Fig. 7 is a detached perspective view of 9M t elonge o h. pp r b am Fig'. 8 isa detached perspective vievv-qofi the shorter tooth-supporting beam.

The improved device includes a tongue 10 to which the draft appliances, not shown, are attached. Pivoted at 11 to the tongue 10 at its rear end is a tooth supporting beam 12, while a similar beam 13 is pivoted at 14 to the tongue in advance ofthe pivot 11. When the device is to be arranged as an A harrow a third and shorter beam 15 is employed and pivoted at 16 to the tongue 10 forwardly of the pivots 1114, the three pivots being located at uniform distances apart. 7

The tongue 10 is also provlded with another bolt receiving aperture 38 forwardly five of the teeth are ofthe aperture 16 as shown, to receive a tooth-holding bolt when the device is arranged as an A harrow, as hereafter exp d. I c

The beams 1213 are each provided with a plurality of. apertures 17 spaced at uniform distancesas shown in Fig. 7, and with surplus apertures 18 spaced at substantially equal distances from the central aperture 17. The shorter beam 15 is provided with a central aperture 20 and terminal apertures 21, the latter aperturesbeing spaced at the same distances fromthe central aperture 20 as the intermediate apertures '17 e are spaced from the central aperture 17 "of the beam 13.

aperturesof the beams 13 and15 and by increasing or decreasing the number of teeth the operation of the harrow may be varied to adapt it to the condition of the soil upon which it is operating. By providing a plurality of the teeth and'a' plurality of the beams with their numerous apertures, the arrangement of the teeth relative to the beams may be varied as required, .andas illustrated in the drawings. i

. In its simpler form, as shown in'Fig. 1, employed with the beams 1213 he'ld'obliquely to the longitudinallaxis of the tongue 10 and'with the 'poin'ts'of the teeth operating 'in a correspondingly oblique direction. In Fig. 2 five 'of the teeth are shown with the beams 1 213 held "substantially at right angles to the tongue? In Fig. 4 four teeth are shown at uniform distances apart with the beams l2 ,l3 oblique to the longitudinal axis of the tongue and supporting four of the teeth.

It will be noted that in all the various arrangements of the device the teeth are spaced at uniform distances with their spaced distances varying in length. For instance in the arrangement shown in Figs. 1 and 2 the teeth are coupled only to bolts passing through the apertures 17 In Fig. 4 the outer teeth are coupled by clamp bolts extending through the apertures 17 and two of the teeth coupled by clamp bolts extending through the apertures 18. In the last described arrangement the central tooth is discarded.

In Fig. the device is shown with the teeth arranged to produce an A barrow in which the outer teeth22 are coupled to. the

engaging through one pair. of the apertures 17, and a fifth or central tooth connected by a bolt 39 engaging through the aperture 38, and a clip device engaging through the aperture 20 ofthe beam 15 and the aperture 16 of the tongue. By this arrangement the points of the teeth are disposed in \lsshape, or forming what is commonly known as an A harrow.

The clamp bolts by which the forward apertured terminals of the teeth are secured to the beams are of the ordinary form with nuts 23 at one end and heads 24.- at the other ends. Where the teeth 22 pass beneath the beams rearwardly of their forward ends they are coupled by clip devices to the rearward beam in Figs. 1, 2, 3, and 4, and in Fig. 5 the teeth which are connected to the shorter beam 15 are supported by clips from the forward longer beam 13 as indicated, while the, central tooth, as before described, is coupled by one of the clip devices engaging through the beam 15 and tongue 10. One of the clip devices is illus trated in Fig. 6, and comprise a threaded standard 25 and a slottedhead-2d through which the intermediate portions of the teeth extend. The standards 25 extend through. the beams 1213 and 15. while thecentral standards likewise extend through the. tongue 10, as shown in Figs. 1, 2 and 5. Thus by, furnishing a plurality of teeth, clamp boltsand the clip devices, the teeth may be readily. arranged as shown in thevarious figures by merely transposing the bolts, clip devices and. teeth, as will be obvious.

' At one end thebeams 12-13 are coupled by a holding strap 27 thelatter being engaged by the terminal clamp, bolt, of the beam 13 and the terminalstandard25.ofithe beam 12. At its front end thestrap 27 is extended into an eye 28 with which a rod 29 copies of this pateut may be obtainedlfor .fi ve eentseach, by addressing theflflo nmtesioner or? fiifatente,

1 ,zwrsee isswingingly coupled by a corresponding eye. 30. At its forward end the rod 29 is apertured to receive a clamp bolt 31 extending through the tongue and held in position. by a clamp nut 32. The tongue 10 is provided with another aperture 33, to. receive the clamp bolt 31 when the beams 12-13 are disposed at right angles to the tongue as shown in Fig. 2. By this means the beams are rigidly supported in position relative to the tongue. When the parts are arranged as shown in Fig.5 another strap 34 is coupled at one end to the same terminal bolt which holds the front end of the strap 27, and is coupled at its other end! by the adjacent terminal boltv ofthe. shorter beam 15. The strap 3a is extended at its front end into an eye 35 with which a similar eye 36 on a rod 37 engages. is provided with an aperture to receivethe clamp bolt 31 and is held in place by the clamp nut 32. The rods 29-37 are substantially alike exceptthat the rod 37' is shorter than the rod 29.

The standards 25 being rotatable in the beams and tongue, will readily rotate when the beams are. adjusted to a. position oblique to'the tongue, as shown. in Fig. 1 and; thus avoid cramping the parts.

Having thus described theinventiomwhat is claimed as new is: 7

A device of the class described comprising a draft tonguaa plurality ofbeams with certain of said beams having aperturesin spaced relation, means for swingingly. connecting said beams to said draft tongue in p e relation, a plurality. f c t v o teeth adj ustably connected to the; apertures of said beams, a strapdevice connectingsaid beams at one end; and extended into an; eye at the other end', and a connecting member having an eye atone end engaging the eye of the strap andconnectedat the other end I to said draft tongue.

In testimony whereofI atfixmy signature.

LBERT FERG O Waghington, 1 0.

At its forward end the rod 37 

